Rotary fireplace



Q July 5, 1938. D. T. BORGSTROM 2,122,635

ROTARY FIREPLACE Filed Sept. 2'7, 1937 flyz INVENTOR 1 24/72! 2130/.sf/vm I ATTORNEY Patented July 5, 1938 PATENT" OFFlCE ROTARY FIREPLACEDavid '1. Borgstrom, Los Angeles, Calif.

. Application'september 27,-1937, Serial No. 165,815

6 Claims. (Cl. 126-125) This invention relates to a reversible orrotatable fireplace structure which is capable of being installed'in aposition wherein it fills an opening through oneor more partitions inorder that the fireplace may be rotationally adjusted to present itsopen side to any one of a plurality of rooms which are separated fromeach other by the partition or partitions in which the fireplace isinstalled. I

' An'object of the invention is to utilize heat in a fireplace structurebyconstructing the fireplacein such a manner that while one room isbeing heated by radiation of heatfrom-an open fireplace, another roomwould be heated by the conduction of'heat through a closure wallprovided ior'one side of the fireplace.

Another object of the invention is to provide a fireplace structurewhich while heating one room by means ofan open fireplace and heatinganother room through a fireplace wall thus safeguards children who maybe occupying the latter room from direct contact with the fire withinthe fireplace.

Among other objects of the invention is to provide a superior mountingmeans for a rotatable fireplace structure; to provide superior means forconserving the heat produced in the fireplace; and to improve uponvarious details of fireplace construction as will hereinafter appear.

Referring to the accompanying drawing which illustrates what is atpresent deemed to be a preferred embodiment of the invention,

Fig. 1 is a front view of a fireplace structure 3 as the same appearswithin a room which is heated by conduction of heat through thefireplace wall.

Fig. 2 is a vertical mid-section taken on line 22 of Fig. 1.

Fig. 3 is a transverse section on line 33 of Fig. 2.

Referring in detail to the drawing, the fireplace is shown installedwithin a building structure having a floor Hi and a partition I I, saidpartition being furnished with an opening l2 adjacent to the fioor.Above said opening I! there is built into the wall a conically shapedhood 13 which communicates at its upper end with a wall flue I4.

In the lower portion of the partition opening !2 is built a circularstationary base 15 of any suitable fireproof material. The rotatablefireplace construction is mounted upon said base and includes a circularbase plate l6 which is preferably supported upon said base by means ofantifriction balls or rollers I! which travel upon an annular trackmember l'lt. Upon said base plate is mounted in a fixed relation theretoan angular fireplace wall structure 20 external to which is a somewhatmore than semi-circular plate-or wall l8, said wall l8 extending up to apoint substantially on the level with the lower edge of the conical hood13. By preference and part cornmunicating at its upper end with a fluetube 23 which communicates with the fiue I4,

the outer wall portions and the top cross wall lila. Vent openings I8aare provided to allow heated air to pass through the wall l8 into theroom behind the open side of the fireplace.

As shown in Fig. 2 the stationary hood [3 does not taper upwardly asrapidly as the rotatable conical member 22 and is also of a somewhatgreater diameter at its lower end than the latter member. Also the innerangle of the fireplace wall portion 20 is spaced a considerable distancefrom the central portion of the convexed wall l8. By this arrangement ahot air chamber is provided between the walls I8 and IQ of the rotatablefireplace construction, this chamber having a lower base portion 24 andan upper portion 25. In order to add to the amount of heat conductedfrom the inner wall portion of the fireplace the shell 22 is provided inits lower portion and at the back side of the fireplace with an alcove26 produced by forming a two part angular depression in the wall at thispoint. A restricted angular throat results between the two parts of saiddepression, thus producing more efficient heat radiation at this point.

The stationary hood I3 is furnished with an open grill work [3a thusaffording tapered openings |3b in said hood through which the hot airradiates from the conical part of the fireplace freely into the rooms.

A variety of means may be used to rotate the fireplace structuremanually or otherwise through a semi-circumference for the purpose ofreversing the position thereof so that the open side of the fireplacemay be transferred from one room to the room on the opposite side of thepartition H. In Fig. 2 of the drawing is shown the flue spout 23 havinga wheel pulley 30 attached externally thereto which is rotated by a beit3| passing over a pulley 32 fi'xed to The shaft 33 of a motor 34. Ifdesired 'a crank 35 may be added for manual rotation of the structure.

At each side of the rotatable fireplace structure 'a sealing member 33may be provided, said member cooperating with the moving flanges 3 1which croiwd up close to the wall to make a good closure when thefireplace is turned into register with either of the rooms between whichthe partition extends.

I claim:

1. In combination, a building structure including rooms separated by anupstanding partition with an opening through it and a conical hood oversaid opening, said partition having a flue leading upwardly from thespace occupied by said hood, and a fireplace in said opening, saidfireplace having a conical top portion which communicates with saidflue, said fireplace also having a fireplace opening and being turnablyadjustable to direct said opening towards a selected a room of aforesaidrooms.

2. In combination, a building structure including rooms separated by anupstanding partition with an opening through it and a hood over saidopening, said partition having a flue ieading upwardly from the spaceoccupied by said hood,

and a fireplace in said opening, said fireplace hood having an openingfthrough its top portion and said partition having a flue verticallyabove said opening thriiugh said hood; and a fireplace turnable in ahorizontal plane and occupying said opening in said partition, saidfireplace h-aving an open lower side portion and a' conical top portionfurnished with an outer wall and with an inner wall in an internallyspaced relation to said outer wall, thus providing a heat radiatingchamber, said. inner wall being furnished with a fine spout whichprojects upwardly into the aforementioned flue in the partition in aturnable relation thereto, and means to turn said fireplace to presentits open side toward the desired side of said partition, the firstrecited hood having openings through it to admit heat into the rooms.

4. The subject matter of claim 3 and, said flue spout of said firepiacehaving a wheel portion which forms a portion of said means for turningthe fireplace.

5. A fireplace structure positioned between adjacent rooms and includinga conical top portion above a combustion space, said conical top portionhaving an outer heat radiating wall and a wall spaced inwardlytherefrom, said inner wall conducting the products of combustionupwardly from said combustion space, said inner wall having exteriorlyformed in it an alcove which augments the amount of heat radiated bysaid inner wall into the space between the outer and inner wall of saidconical top portion of said fireplace.

6. The subject matter of claim 5, and, said alcove consisting'of twoopposed angular wall depressions having an angular throatbetween themthrough which the products of combustion ascend. I

DAVID T. BORGSTROM.

